Average Co-Inventor Count = 2.82
ph-index = 5
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Sony Computer Entertainment Inc. (6 from 1,799 patents)
2. Sony Corporation (2 from 58,129 patents)
8 patents:
1. D521502 - Headphone
2. D514550 - Headphone
3. D513249 - Headphone
4. D512417 - Noise canceller
5. D511769 - Holder for headphone
6. D510086 - Holder for headphone
7. D504872 - Remote controller
8. D494167 - Portable information terminal